... lightweight, 3, building insulation material, 4, lower heat conductivity, Nitrile rubber foam sheet roll insulationBrief introduction as follows: 1, Best insulation ... glass 5, Easy for construction; 6, Environmental, lower lead and Cadmium, reach US California 65 Proposition 7, plastic bags for ... stapesMore of us, feel free to contact me any time. Flexible Rubber Insulation Sheet and Tube (wholesaler)